1. VA Portland Health Care System, Portland, Oregon, USA
2. Department of Psychiatry, Oregon Health & Science University, Portland, Oregon, USA
3. Department of Neurology, Oregon Health & Science University, Portland, Oregon, USA
4. Independent Practice, Beaverton, Oregon, USA
5. Department of Medical Informatics & Clinical Epidemiology, Oregon Health & Science University, Portland, Oregon, USA
6. Northwest Mental Illness Research, Education, and Clinical Center (MIRECC), VA Portland Health Care System, Portland, Oregon, USA
7. Department of Psychiatry, University of California at San Diego, La Jolla, California, USA
8. Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
9. Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA